Pitanova, Garis Chikagraha (2021) Alternatif Penggunaan Metode Base Isolation : High-Damping Rubber Bearing (HDRB) Pada Struktur Bangunan Gedung Hotel Grand Mercure Malang 16 Lantai. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Indonesia sebagai negara kepulauan berada pada titik pertemuan beberapa lempeng tektonik. Keadaan tersebut menyebabkan Indonesia menjadi sangat rentan terhadap kejadian gempa bumi. Di daerah perkotaan yang padat, waktu yang dibutuhkan untuk mengevakuasi seluruh bangunan seperti gedung bertingkat jauh lebih lama. Ada beberapa cara paling efektif untuk memperkecil atau mereduksi gaya gempa pada bangunan gedung bertingkat salah satunya base isolation. Konsep dari base isolation sendiri adalah berusaha “memisahkan” bangunan dari gerakan horisontal dengan memasang isolator diantara kolom dan pondasi.
Gedung Hotel Grand Mercure Malang merupakan gedung beton bertulang 16 lantai dengan struktur dual system yaitu Sistem Pemikul Momen Khusus (SRPMK) dan shear wall. Pada analisa proyek akhir ini, dilakukan perencanaan ulang menggunakan base isolation : High Dumping Rubber Bearing (HDRB) dengan Sistem Pemikul Momen Biasa (SRPMB). Hal ini bertujuan untuk mengetahui respon bangunan terhadap beban gempa yang lebih besar. Penggunaan HDRB dapat mereduksi beban gempa pada bangunan, sehingga cocok digunakan pada daerah dengan kelas situs SC-SD. Jenis base isolation ini dapat memberikan gaya redaman yang luar biasa dibandingkan dengan base isolation lainnya. dapat menahan beban besar untuk jangka waktu yang lama dan mampu mengalami deformasi besar selama gempa bumi.
Perencanaan Dilakukan melalui beberapa tahapan. Pertama, permodelan struktur sistem SRPMB dengan base isolation : High Damping Rubber Bearing (HDRB). Permodelan tersebut diberikan pembebanan, termasuk beban gempa respons spektrum komposit akibat penggunaan base isolation. Hasil dari permodelan tersebut dilakukan analisa kontrol struktur sesuai dengan standar perencanaan. Tahap selanjutnya yaitu melakukan perhitungan struktur atas dan bawah yang akan dijelaskan pada penggambaran teknik. Terakhir yaitu merencanakan metode pemasangan struktur base isolation : High Damping Rubber Bearing (HDRB).
Proyek akhir ini mendapatkan hasil bahwa dalam penggunaan base isolation : High Damping Rubber Bearing (HDRB) dapat mereduksi gaya geser dasar bangunan arah X adalah sebesar 59.40%, dan beban gempa yang tereduksi pada arah Y adalah sebesar 51.63%. Sedangkan hasil perhitungan kebutuhan tulangan struktur fixed based maupun struktur base isolation : High Damping Rubber Bearing (HDRB) gedung Hotel Mercure Malang, menunjukkan bahwa terdapat reduksi tulangan keseluruhan (balok, kolom, pilecap) sebesar 32.79 %. Maka rencana gedung Hotel Mercure Malang menjadi lebih efisien dan tahan terhadap beban gempa yang tinggi.
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Indonesia as an archipelagic country is at the meeting point of several tectonic plates. This situation causes Indonesia to be very vulnerable to earthquakes. In dense urban areas, the time required to evacuate an entire building such as a multi-storey building is much longer. There are several most effective ways to minimize or reduce earthquake forces in high-rise buildings, one of which is base isolation. The concept of base isolation itself is trying to "separate" the building from horizontal movement by installing an insulator between the column and the foundation.
Hotel Grand Mercure Malang building is a 16-story reinforced concrete building with a dual system structure, namely the Special Moment Resistant System (SRPMK) and shear wall. In this final project analysis, re-planning is carried out using base isolation: High Dumping Rubber Bearing (HDRB) with Ordinary Moment Resistant System (SRPMB). It aims to determine the response of the building to a larger earthquake load. The use of HDRB can reduce earthquake loads on buildings, making it suitable for use in areas with SC-SD site class. This type of base isolation can provide exceptional damping forces compared to other base isolation. can withstand large loads for long periods of time and are capable of large deformations during earthquakes.
Planning is carried out through several stages. First, modeling the structure of the SRPMB system with base isolation: High Damping Rubber Bearing (HDRB). The model is given a load, including the composite spectrum response earthquake load due to the use of base isolation. The results of the modeling carried out an analysis of the control structure in accordance with the planning standards. The next stage is to calculate the upper and lower structures which will be explained in the technical drawing. The last is planning the method of installing the base isolation structure: High Damping Rubber Bearing (HDRB).
This final project results that in the use of base isolation: High Damping Rubber Bearing (HDRB) can reduce the base shear force of the building in the X direction by 59.40%, and the reduced earthquake load in the Y direction by 51.63%. While the results of the calculation of the need for reinforcement for fixed-based structures and base isolation structures: High Damping Rubber Bearing (HDRB) in the Mercure Hotel Malang building, show that there is a reduction in overall reinforcement (beams, columns, pilecaps) of 32.79%. So the Mercure Malang Hotel building plan becomes more efficient and resistant to high earthquake loads.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Gempa Bumi, Dual System, Base Isolation, High Damping Rubber Bearing, HDRB, Sistem Pemikul Momen Biasa, SRPMB, Earthquake, Dual System, Base Isolation, High Damping Rubber Bearing, HDRB, Ordinary Moment Resistant System, SRPMB |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA780.C29 Piling (Civil engineering) |
| Divisions: | Faculty of Vocational > Civil Infrastructure Engineering (D4) |
| Depositing User: | GARIS CHIKAGRAHA PITANOVA |
| Date Deposited: | 26 Aug 2021 07:22 |
| Last Modified: | 23 Sep 2024 01:36 |
| URI: | http://repository.its.ac.id/id/eprint/89647 |
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